Telephony.



H. P. OLAUSEN.

TELEPHONY.

APPLICATION FILED JAN.12,1912.

1,1 33,264. Patented Mar. 30, 1915.

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Alfur y H. P. CLAUSEN.

TELEPHONY.

APPLICATION FILED JAN.12, 1912.

1,1 33,264. Patented Mar. 30, 1915.

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H. P. CLAUSEN.

TELEPHONY.

APPLICATION FILED JAN. 12, 1912.

1,133,264. Patented Mar.30,1915.

% l l l l imf 90 mimw WV 2L: g, [M5117 flUZ 5 Hewl fla usen zsi%m@ 2.4; y v Allur WEE HENRY P. CLAUSEN, OF ROCI KESTER, NEVJ YORK, ASSIGNIE T6 WESEERN ELECTRIC iSOMPANY, OF CHICA.

ILLINOIS.

TATES -0. Kil -lol TELEPHOIQY.

Specification of Letters Patent.

Application filed January 12. 1912. Serial 25c.

Patent ed plug into it. line and call opcr with a! soon an n] section. s r

My invention relates to an improvement in the art of establishing telephone connec tions between subscribers, and to the switchboard, apparatus and circuits for establishing such a connection.

The object of my invention is to distribute the calls or traiiic among the various operators in an exchange substantially uniformly. Ynrious methods have been suggcsted for accomplishing this result, by means of an intermediate distributing frame, and later by means of automatic distributing switches. My present invention, however, accomplishes the result in a more uniform andv less expensive manner, and Without the aid of automatic distributing switches.

'lerscly seated, my invention consists of a multiple switchboard in Which a line sig nal for each line is given a definite position in one division of the switchboard and the various multiple rs for this line are given similar positions in other divisions of the swi tehboard.

An operator, Whom I will term a call operator, is located before the signal division of' the switchboard, and other operators, Whom I Will term connecting operators, are located before the various multiple jack divisions of the switchboard. The removal of the receiver at a subscribers station displays a lamp in the signal division of the switchboard. The call operator, who is provided with transmitterand means to connect the transmitter with various connecting operators receivers, observes the position and, therefore, the munber of the signal displayed, and speaks this number into her transmitter, thus informing one of the connecting operators that the subscriber known by this number desires a connection. The connecting operator then inserts her answering plug into the multiple jack of the line designated, by the call operator and inquires for the desired number in the usual way. Having received the desired number, the connecting operator inserts her calling total number of operators could be reduced to two thirds the number required for multiple exchange in u'l supervises a d, lines. To this vention will be point. specification and cia My invention il panvin; drawing Figure 1 illust 'h each connecting operator ii I) to 156 the required Hes three telephone lines with their signal lamps located in one disi sion of the su'itchlmaid a;

modifications may be made al inn" from the spirit or Isl-or In Fig. 1. each of the H 5, ii and T is pi'm'iihul r and aunuiu'iator 5. in 2 line conductors it) anal mitter 1; and receirer rious count-:-

trates a third modi ll ill tiple jacks l' cor Minding pc i- -tions in other .5 of ti switchboard. Fig. 2 ilhas method by u h the call operate; may if" a "rented various c-tinucetin 0 i rig another itur iimf; be ting op oporitor may he s connecting cu It to be Hndorsiru l that other at de; irtinvention. stations tained normally open by contacts of the switch-hook 14. At the central office, line conductor 10 is connected through the con tacts l5 and 16 of cut-oil relay 17 and the coil of line relay 18 with the live pole of battery A, and line conductor 11 is connected through contacts 19 and 20 of cut-off relay 17, with earth. -Line conductor 11 is also with answering jacks of the character usu-.

ally'denoted by that term, and the lamps for these lines are located in a division of the switchboard which contains no jacks of any character. This division is, for convenience, shown at one end of the multiple switchboard, though it is to be-understood that it may be upon any convenient position and need. not even he in the same room or same exchange with the multiple jacks through which the conversational connec tion is completed. It is to be understood that this circuit arrangement is typical and that any of the well-known multiple switchboard circuits may be substituted for the one here shown. A cord circuit for interconnecting these lines is illustrated with its answering and calling plugs located in their respective positions in the. plug shelf of the multipleswitchboard.' This cord circuit, which is typical of the many which would be used in an exchange of this type, is provided with the tip answering terminal 35, connected through. conductor 36, condenser 37, conductor 38, contacts 39 and 40 of the operators ringing key, and conduc tor 41, with the tip contact -12 of the calling plug. The sleeve contact 44 of the answering plug is connected through conductor 45, condenser 46, conductor 47, contacts 48 and 49 of the operators ringing key, and con ductor 50, with the sleeve contact 51 of the calling plug. The tip and sleeve answering supervisory relays 53 and and the main battery .1 are connect-ml in a bridge between the talking strands 36 and -15 of the cord circuit. 'llicsc relays cooperate to control the answering cord slu'ier isory signal 55 in a manner well known in the art. The calling supervisory relays 5G and 57 are siniilarlv connected and similarly control the circuit of the calling supervisory signal 58.

Referring to Fig. 2, the call operator locatcd licl'orc the signal division'is pro. iilrd with the transmitter 55 and key 56. .\ssociatcil with these is the step bystep switching mechanism 57. The conductors 58 and 59, leading from the secondary ol': the operator: induction coil 00, are connected with the segments 61 and 62- ot the switch 57, the brushes 63 and 6% being adapted to connect these segments with the vafi'ous con- 79 tacts 65 and 66, arranged about the circumference of the switch. Contacts 65 and 66 are arranged in pairs, each associated pair eing located 120 degrees apart in the circumference of the switch, and these contacts being connected with one of the operators receivers 68, which is located at a connecting operators position. The switch is provided with a third segment 70 and brush Tl connecting this segment with the various contacts 72, these contacts being cormccted through conductors with the various lamps 7% located at the various connecting operators positions. A particular contact 72 is connected with a lamp located in position, one in advance of the position to which the two contacts, which are 129 degrees from the particular contact 72, are extended. Segment 70 is connected with the' live pole of a battery and the lamps at the various operators positions are grounded so that when the call operators circuit is connected with the first connecting operators rcceiver, the lamp at the second connecting operators position is displayed, thus indicating to the second operator that she will receive the next connection with the call operator. T he key 56 is connected through the motor-magnet 76 so that the tie press-ion of the key completes the circuit of the motor-magnet and steps the switch, one step at a time, in a clock-wise direction.

in Fig. 3 I have shown a modification by HlL'HllS of which the transmitter 78, located at the call operators division, may be conncclcd to any one of the receivers 79 by the selective operation of the push buttons 80.

in Fig. 4 I have shown a l'urihor modification, the transmitte and receiver circuits ot which operate the same as described in connection with Fig. 2, but in which each of the connecting operators is providcd with a barring key. 82, each of which normally grounds a contact 83 of the rotary switch St. The normal operating circuit for the motorqnugnct 85 is. therefore. from the live ole ol battery through the contacts of the call operators switch so, coiuhictor 87, m oi" motor-magnet 8.1, segment 88, brush and the various contacts 5;} and switches 1 0 1. to ground. It, for some reason, an operator is unable to complete a connection. or wishes to lcuie her position. she may throw lici' luy 8; to its alternative position, in whi h case an interrupted ground will be sub- 125 stitulcd for the pcruiaiicut ground. \Vhen the brush 5' comes upon this contact of the rotary swit h i, by reason of the actuation of the call o'pcraior s key 86, instead of the switch Sl taking one step, it will take two 130 sfieps by reason of the rotation ii the interrupter $30 and the consequent intcrriniition 0114 he tircuit through the nmlui'qnngrntt In U16 nparation of n :gvxtmn 4. U sm-fiber ffiHiiE-K'Cb' tlm receiwr it; from tin: switch lmok at tho i-yalyrstntion and. Llxns wmpletvs ills circuit of the line relay 1 and Gisphrm m nswnintrd i ne lamp 3?. a: teal in the (Hill oprml'nris division of the s\ iit,vllbm1rd. The will n' iei'ulos'. obserxinsx 'tln Ll :lzn' of M5 hgg'nnl 11nd ubsm". mg its luriit nn in the iivlllmzrri. SpLiLkQu the number nl' Ilia a vizitml liflz mm lwr u-nmmillvr. this; lwing Emmi ll 01:: of U12. winner n npu!;\l()i"-4. 'llw mu 'ing npvrniw i'vcrix in; numiwr l l'fs lwr 11'i '\\'m'mg WM '5 and in will? :fln; nnillipln jnili in Elma as w imml Mil

:il \nuwnlur bodimentof my mwntinn, I do not \YlSi) to be nmlizl} limited tlmr tm many lnmlifczr Fiona Ming pnssiblv mtliamt lape ngg l'im'n Kiln? am 01 scope of the lHJCTHW/IL 1 I n a, telephone system, the umibination with a plurality of telephone: lines, of a lamp fur 1101! line and a. plum liiy in nzuitiple jacks for each line, all of said lumps being located before certain operators and all ml the jacks being located hefure difl'eruni ()ji\ll'ilt.=1b at the central oliice, and mcans 0*: ci xnn'lunicution between the n aeratur l cfUlL' the lamps and the opmators before in? jzn kg whnreln the display of an lump may be mnnnunicntul Lu the n mrntxirs limited lmlore the jzn'lis, and. nnzuns cuntrnllcil solely my the upcrutms before {he jucl i'ur Milling wunnutiuns between Willing and ale all lines in 1 t alqihonu b \'bllfl)l, the unnbinaiiwn I tlllipliwiitl line, :11 :i, line blgnnl ilicriz :11, :I (all uperzlmr s iliklSiOIl l'rm: from i: f: comini'tnrzs 1 will l. u) and null la 3m :5 Llim 1m n-L cunnemmg (i-POl'iltiH'S' lixmonbx means in teleplionnxllv communi- 1, A tulnplmnu switchboard comprising a,

nu lump pluzzwliiy n1 (lids :ms A

uns, ninllzyli: jrii,l\'5 liiw limp mils Eununs; --]ll '2.ll v' wiynnuni ming -pluy ii lime lump signal, .l'il fi'. in gmrilinn in w an: lw n11 opnz'ntu E!!! nwllipiv Vivi wlmuml whlnmt (no signal animator nnlinn; any comm-Linn with Sun} line, and Ilifl:'ZlXWi'illlQ' mum (or cunnectiun bemli; mm multiply" junk; of thu mine d1- mml in nnr of and iliv ill s 3' n-lc-nlmnn w tvni, the cvmlnnntinn =1 mll npvrimn' ii; "In; nnil n pl zwilthx 0.5 srun'ncvtir-az if p flfll fl rmine uniting i" alt; vi, the infil :1 :"-l.4)p-l Sl'xi) switch a key at t H ntnrs f'mgiiiiun f r zic'tuuiing said witch, a runsmiixw' at the call operators position,

and a reciier at ear-h of said, connecting operators positions in. q nilent of the in terconnecting circuit; anal circuit connections .vlmrehv the call operatons transmitter connected to the uri -u connecting opcrators receivers one at n time and in sequence through the contacts of said switch whereby the call operator may minmunicate with the connecting operators. one at n time.

(i. "The n'icthoil f? interconnecting telephone lines c nsisting in dis laj- 'ing a sig nal for n calling line t one person at the central oilice, tmrminitting the identity of the calling line orally to another person at another division at the central ollice, connecting directly with the calling line at the latter division n response to said oral instruction" receiving the nuniher of the desired line cl from the calling; subscriber at the latter oiv' on of the switchboard and compieting ther connection Letween the calling and. dc telephone lines.

7. In a telepnone system in combination,

a calling operators division of the switchboard. and a plurality of connecting operators divisions, circuits extending between the calling operators division and each of said connecting operators divisions, a transmitter at the calling operators division and a receiver and lamp at each of the connect; ing operators divisions, means whereby the calling operator may connect her transmitter with the receivers at the connecting: operators positions in a given order, and means for displaying the lamp at the connecting operator-s position with which the calling operators transmitter will be next connected 1n the given order.

Signed by me at Rochester, county of Monroe, and State of New York, in the presence of two Witnesses.

HENRY P. CLAUSEN.

\Vitnesses .T. ll. LEVJS, JR. T. A. BUCKLEY. 

